- Archival materials (9)
- Collection descriptions (9)
- Photographs (8)
- Correspondence (7)
- Articles (2)
- Manuscripts (2)
- Maps (2)
- Scrapbooks (2)
- Audiocassettes (1)
- Audiotapes (1)
- Clippings (1)
- Diaries (1)
- Logs (records) (1)
- Newspapers (1)
- Notes (1)
- Photograph albums (1)
- Programs (1)
- Reports (1)
- Transcripts (1)
- Aeronautics (9)
- Air pilots (4)
- Periodicals (4)
- World War, 1914-1918 (3)
- World War, 1939-1945 (2)
- Aerial photography (1)
- Aeronautical engineers (1)
- Aeronautics and state (1)
- African American air pilots (1)
- Air mail service (1)
- Airplanes (1)
- Airships (1)
- Balloons (1)
- Cartography (1)
- Fighter pilots (1)
- Flight attendants (1)
- Gliding and soaring (1)
- Kites (1)
- Women air pilots (1)
- Women in aeronautics (1)
- Works of art (1)
Our collections specialists actively work on the conservation, preservation, restoration, and long-term care of the objects in our collection. From full-scale restoration projects to applying preservation techniques and doing regular assessments, these activities form a crucial part of our stewardship of the National Collection.